package ms.platform.util;

import java.awt.*;
import java.util.Random;

public class Verificationcode {

	public static final String VALIDATE_CODE = "checkcode";

	public static Color getRandColor(int fc,int bc) { 
		int f = fc;
		int b = bc;
		Random random=new Random();
	    if(f>255) {
	    	f=255; 
	    }
	    if(b>255) {
	    	b=255; 
	    }
	    return new Color(f+random.nextInt(b-f),f+random.nextInt(b-f),f+random.nextInt(b-f)); 
	}

	public static void createBackground(Graphics g,int w,int h) {
		g.setColor(getRandColor(220,250)); 
		g.fillRect(0, 0, w, h);
		for (int i = 0; i < 8; i++) {
			g.setColor(getRandColor(40,150));
			Random random = new Random();
			int x = random.nextInt(w);
			int y = random.nextInt(h);
			int x1 = random.nextInt(w);
			int y1 = random.nextInt(h);
			g.drawLine(x, y, x1, y1);
		}
	}

	public static String createCharacter(Graphics g) {
		char[] codeSeq = {'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'J',
				'K', 'M', 'N', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
				'X', 'Y', 'Z', '2', '3', '4', '5', '6', '7', '8', '9' };
		String[] fontTypes = {"Arial","Arial Black","AvantGarde Bk BT","Calibri"}; 
		Random random = new Random();
		StringBuilder s = new StringBuilder();
		for (int i = 0; i < 4; i++) {
			String r = String.valueOf(codeSeq[random.nextInt(codeSeq.length)]);//random.nextInt(10));
			g.setColor(new Color(50 + random.nextInt(100), 50 + random.nextInt(100), 50 + random.nextInt(100)));
			g.setFont(new Font(fontTypes[random.nextInt(fontTypes.length)],Font.BOLD,26)); 
			g.drawString(r, 15 * i + 5, 19 + random.nextInt(8));
//			g.drawString(r, i*w/4, h-5);
			s.append(r);
		}
		return s.toString();
	}
}
